Fire-extinguisher.



M. 0. FAIRWEATHER & 1.. W. THEIS.

FIRE BXTINGUISHER. APPLICATION FILED 00'r.1, 190s.

952.6 1 3. Patented Mar. 22, 1910.

, n sets are amen MALcoLM c. "FAIRWEATHEB- AND LEROY WUTHEIS, orCLEVELAND, OHIO, 1

IRE-EXTINGUIsHERI To allwhom it ma y'co'ncerm 'Be itknown that we,l\L\LCOLM FAIR4 'EA'LHER and Lnnor W. 'lrmis, citizens of the UnitedStates, residing at Cleveland, in the county of Cuyahoga and State ofOhio, have invented new and useful Improvements in Fire-Extinguishers,of which the following is a specification. p

This invention relates to fire extinguishing apparatus, and consistsincertain improvements in the construction thereof as will behereinafter fully described and pointed out in the claims. In some typesof such apparatus, commonly called sprinkling systems, water ismaimiained in the line. A pressure tank is used for this purpose inwhichv the water is stored, partially filling the tank, and on which airunder pressure is maintained, so as to keep the liquid under pressure,should there be leakage.

The invention practically consists of a Y pumping apparatus used inconnection with such a pressure tank, and the object of the invention isto simplify this apparatus, and make it more eflicient.

The invention is illustrated in the accompanying drawings as followsFigure 1 is an elevation of the ap nn'atus, partly in section to bettershow construction; Fig. 2 is a diagram of the electric driving motor andits reversing switch.

1 marks the pressure tank. ater is maintained in this tank partiallyfilling the tank, and air under pressure is maintained on the water.Where there is leakage it is necessary to pump in additional water, andwhere there is air leakage, it is necessary to pump in additional air.

2 marks the connecting pipe leading from the water pipe to the pressuretank; 3 the air pipe connecting the air tank with the pressure tank; 4the pipe leading to the sprinkling system; 5 the water pump; 6 the airpump. These pumps are of ordinary construction, the connecting rod 7operating the plungers (not shown in each), the connecting rods beingconnected with the cranks 8 on the driving shafts 9.

A reversing electric motor 10 is utilized for driving the pump. Thedriving shaft of this motor 11 has the gear 12 fixed on it by means of akey 13.

A gear 14 is journaled on the shaft 9, of the water pump and the gear 15is journaled on the shaft 9 of the air pump. These gears 14 and 15 haveratchet connection with the p t n of Letters e PatentedMar. 22, 1910.Application filed October 1, 1909. Serial No. 520,448.

shaft 9, the ratchet connection of the gear 14 being such as to'drivethe shaft when the gear 14.1noves'in the direction ofthe hands of awatch, and the ratchet connection of the gear 15beingsuch as to drivethe shaft 9 on the air pump, when the gear 15'1noves in a directionopposite to that of the hands of a watch. Gears 14 and 15 both mesh thegear 12, and are arranged on opposite sides of this gear. It willreadily be seen that when the gear 12 is driven in one direction,it'will drive the gear 15, and consequently operate the air pump, andwhen it is operated in the opposite direction, the gear 14 will driveits shaft, and consequently operate the water pump, and that where thegear 15 is driving the air pump, the gear 14 is running idle, and on theother hand, where the gear 14 is driving the water pump, the gear 15 isrunning idle. All that is neces sary, therefore, for the operator to doin operating the device is to reverse the motor, and either pump in airor water, and as the pressure of air and water is approximatelybalanced, the work required of each pump is approximately the same. Thisis especially so if the water side is pumped up first.

The ratchet mechanism for the gear 14 comprises the ratchet teeth 16 onthe shaft 9. The ratchet pawl 17 is arranged in the gear. This pawl hasthe shoulder 18 against which the spring 19 is arranged, the springoperating against a cap 20. The gear 15 has the same ratchet mechanism,the teeth 21 being arranged on the shaft 9, the ratchet pawl 22 havingthe shoulder 23, and the spring 24 being arranged against the shoulder,and the cap 25-.

We have shown in the diagram a direct current series motor, but it willbe understood that any reversing motor may be used. The line wires 27and 28 are controlled by the reversing switch 29, so as to reverse themotor 10.

What we claim as new is:

1. In a fire extinguisher, the combination of a pressure tank; a waterpump; an air pump; a water connection between the water pump and thetank; an air connection between the air pump and the tank; a reversingmotor for driving said pumps; and driving connections between the motorand each pump, each driving connection being arranged to drive the pumpwith the motor running in one direction, and to run idle with the motorrunning in the opposite diand the tank; driving shafts for the pumps;

rection, and said driving connections being arranged relatively to eachother and the pumps to drive one connection while the other connectionruns idle.

2. In a fire extinguisher, the combination of a pressure tank; a waterpump; an air pump; driving shafts operating said pumps; driving wheelson said shafts; ratchet connections between the wheels and the pump; anda motor for driving said wheels, said ratchet connections being arrangedrelatively to each other and to the pumps, to drive one pump with themotor operating in one direction, and to drive the other pump with themotor running in the opposite direction.

3. In a fire extinguisher, the combination of a pressure tank; a waterpump; a connection between the water pump and the tank; a connectionbetween the air pump driving wheels on the shafts; a ratchet connectionbetween the wheels and the shaft; a reversing motor for driving saidwheels, said ratchetbeing arranged to drive each pump with the gear onthe opposite pump running idle.

4:. In a fire extinguisher, the combination of a reversing motor; awater pump; an air pump; driving connections between the motor and thepump arranged to drive one pump while the opposite driving connect-ionis running idle and vice versa.

In witness whereof we have hereunto set our hands in the presence of twosubscribing witnesses.

MALCOLM C. FAIRVVEATHER. LEROY XV. THEIS. 5 Vitnesses FRED C. POWELL,EJB. Jnssur.

